An equilateral triangle has three lines of symmetry.
What is a triangle with three lines?
An equilateral triangle has 3 sides of equal length. The dashes on the lines show they are equal in length. All of the angles are also equal.
What shape has only 3 lines of symmetry?
A shape can have more than one line of symmetry. Thus a rectangle has two lines of symmetry, an equilateral triangle has three lines of symmetry, and a square has four.
Is a rhombus symmetrical?
A rhombus has two lines of symmetry. It has rotational symmetry of order two.
Is isosceles triangle symmetrical?
Every isosceles triangle has an axis of symmetry along the perpendicular bisector of its base. The two angles opposite the legs are equal and are always acute, so the classification of the triangle as acute, right, or obtuse depends only on the angle between its two legs.
Can an isosceles triangle have 3 lines of symmetry?
The division of triangles into scalene, isosceles, and equilateral can be thought of in terms of lines of symmetry. A scalene triangle is a triangle with no lines of symmetry while an isosceles triangle has at least one line of symmetry and an equilateral triangle has three lines of symmetry.
Does a triangle have three equal sides?
An equilateral triangle has three equal sides and angles. It will always have angles of 60° in each corner.
What are the 3 parts of the triangle?
A triangle has three sides, three vertices, and three angles. The sum of the three interior angles of a triangle is always 180°.
What are the 3 main types of triangles?
There are three types of triangle based on the length of the sides: equilateral, isosceles, and scalene. The green lines mark the sides of equal (the same) length.
Can you draw a triangle which has no line of symmetry?
A scalene triangle can be drawn that has no line of symmetry.
Which shape has no lines of symmetry?
A scalene triangle – A scalene triangle has no line symmetry because it has all sides unequal in length. A parallelogram – A parallelogram has opposite sides equal and parallel but a parallelogram has no line of symmetry. A trapezium – In a trapezium, only two opposite sides are parallel to each other.
Does a parallelogram have 3 lines of symmetry?
1 Answer. General parallelogram has no lines of symmetry.
What shapes have exactly 2 lines of symmetry?
A rhombus has two lines of symmetry.
What 2D shape has 4 sides?
A quadrilateral is a 2D shape with four sides. A list of five types of quadrilaterals: square, rectangle, parallelogram, trapezium, rhombus.
